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TVs

Tv lg Ultraslim ocila but there is no image or sound

Migaru1983
hace 6 años
hace 6 años
Very good and appreciable have my friends, that the Lord spill many and rich blessings in our lives and we always have the wisdom to deal with these problems n, n to my hands came a TV brand lg ultraslim whose model and chassis is inlegible, (since the technician who repaired it a long time ago does not know what to wash the plate and can not see) and the pergantina back does not have it, in Finb is one of those models that burn the Horizontal Tr 6090, my client called me because he says that while watching a movie, there were some workers of the electricity company changing a few lines and the main transformer made short I made a single burn u, u good proceeded to change the tr h 6090 and as it is obio what I burn, then having no certainty q these transistors are of good quality proceeded to test a D1555 and change the electrolytic commanders the c414 of 15n by 2000v but did not hav I only change the c401 from 47n 630v and I do not burn the output h. but there is no sign of anything or the TV turns on, I have stanby and everything I have 5v in memory and jungle but there is no image or sound, just turn on as if there was a lack of voltage or something, if someone would give me help where else I could be I would greatly appreciate the problem, thank you and Blessings. I attach an image of the tv in question 1- D1555 to not have good quality trh proceeded to place this and the tv ocila but no signal or image on screen 2- c414 of 15n by 2000v, as I did not have that capacity, I could not change it 3- c401 of 47n 630v this if you change it and no longer burns the output h. 4- flyback BSC25-N0360 I TAKE IT OUT AND I WAS GOING TO PROVIDE IT AND IT CAME OUT RUNNING PERFECTLY
victor flores martinez
hace 6 años

Comment if you get a filament on CRT

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Migaru1983
hace 6 años

If my friend does turn on the filament, but there is no image or signal or brightness, I upload screen to flyback and nothing but if there is light in filament

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victor flores martinez
hace 6 años

Measure voltage in G2

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Migaru1983
hace 6 años

in the pin of g2 I do not have voltage, in the line that comes from the flybak to g2 (red cable) I have 150v (low to 135/145)

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R.E.Z
R.E.Z
3.644
hace 6 años

Q vol tenes in b +?

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Migaru1983
hace 6 años

137 v in + b my friend

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Electrónica Washi
hace 6 años
hace 6 años
IT COULD BE THAT THIS FAILING THE CZECH PROTECTION TRANSISTOR THAT IS (Q16) ON THE OTHER HAND CHECK RESISTORS THAT ARE RELATED TO THE TL431
Migaru1983
hace 6 años
hace 6 años
good agradesco comments and I apologize for not responding in time but I was left without net, according to a partner this error is due to the TV is protected by failure of the integrated vertical STV 9326, AND THEREFORE THE TV DOES NOT TURN ON COMPLETELY, and it is protected, but I will take into account the proposal I make the tests and then I tell them n, n

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